Gas stove



(No Model.)' 2 Sheets-Shieet 1.

W. M. JACKSON.

GAS STOVE.

No. 310,946. PatentedJan. 20, 1885.

llllg/VTOR 1 5 ATTORNEY 2 Sheets-Sheet 2.

(No Model.)

W. M. JACKSON.

GAS STOVE.

No. 310,946. Patented Jan. 20, 1385 w/r/vEssa's mam ANOR/VEY UNrrnSTATES ArENr @FFICE.

WALTER MARSH JACKSON, OF PROVIDENCE, RHODE ISLAND.

GAS-STOVE.

SPECIFICATION forming part of Letters Patent. No. 310,946, dated January20, 1885.

Application filed May 2?, 1854.

T all whom it may concern Be it known that I, WALTER MARsH JACK- soN, ofProvidence, in the county of Providence and State of Rhode Island,haveinvented certain new and useful Improvements in Apparatus forUtilizing Heat Developed by Combustion; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to an improvement in apparatus for utilizing heatdeveloped by combustion, the object of the same being to provide anapparatus for promoting the combustion of all kinds of gas and obtainingthe greatest amount of heat therefrom, a further object being to providean apparatus adapted to receive a kettle or pet for cooking purposes.

WVith these ends in view my invention consists in certain features ofconstruction and combinations of parts, as will be hereinafterdescribed, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view of the apparatus inelevation partly in section. Fig. 2 is a view of the same, the uppersection of the burner being removed, and Fig. 3 is a modification.

A represents a gas-supply pipe, which pro jects into the enlargedchamber Bin the form of a nozzle, a, which, when the gas is turned on,forms an injector. The enlarged chamber B is provided with an air-supplyopening, I), having a hand-valve, I), for regulating the supply of airto the gas, the construction and operation of this injector chamber andvalve being fully explained in another application, filed May 28, 1884,Serial No. 133,073. A

pipe-section, G, connects the injector-chain ber B with asafety-chamber, D. The chamber D is provided with a wire-gauze diaphragmsuitable to form an effective fire-stop, and at the same time allow afree flow of gas, the general construction and purpose of the chamber Dbeing quite similar to the safety-chamber described in the applicationabove referred to. The safety-chamber D is provided with branch pipes d,which lead to the lower section, e, of an annular burner, E. The burnerE consists of an annular chamber formed of two sections-21. lowersection, e, and an upper section, 6.

The lower section,

(No model.)

e, is provided with an outer upwardly-extending flange, F, threaded onits inner face, and with an inner upwardly-extending flange, f, theupper edge of which is provided with a series of radial teeth, f,similar in appearance to saw-teeth. The upper section, a, of the burneris provided with an outer depending-flange, G, threaded, and adapted toregister with the upwardly-extending threaded flange F on the lowersection. The inner edge of the section 0 is flat, and is adapted, whenthe section is screwed into position, to rest upon and project slightlyover the edges of the teeth f, thus forming a series of radial openingsextending inwardly from the burner-chamber. The section 0 is furtherprovided with three or more upwardly-extending plates, cast i11- tegraltherewith, said plates forming rests for supporting a pot or kettle overthe flame of the ignited jets issuing from the saw-tooth perforations f.The gas-supply pipe A is provided with a stop-cock, m, to regulate theflow of gas, and the apparatus as thus constructed may be secured to thesupply-pipe in an upright position for use.

The advantages of this apparatus consist in the regular flow of gas fromthe sawtooth notches about the entire inner circuit of the burner, thedistance between the jets being of no appreciable value at the edges ofthe teeth, while a supply of air from below the burner causes the mostperfect combustion and the highest degree of heat.

The construction of the burner is also extremely simple and durable, andits combina tion with my improved air-injector chamber for furnishingany requiredamount of oxygen to the gas, and the safety-chamber toprevent any possible accident, make the apparatus a most efficient andsafe heater.

The modification referred to in Fig. 3 consists simply in providing thelower section, 6, of the burner with legs H. The legs are preferablycast integral with the section 0, and, to allow the burner to beplaced'upon a table or any horizontal support, the gas and air supplypipe enters the safety-chamber at the side instead of the bottom.

It is evident that slight changes may be made in the form andconstruction of the several parts herein described without departingfrom the spirit and scope of my invention. For ex- I OCI ample, theremay be more than two branchpipes leading from the safety-chamber to theburner, and the upper section of the burner might be secured to thelower section in other ways than by a screw-thread.

I make no claim, broadly, in my present application to theinj ector-chamber, safety-chamber, and annular burner, these forming a part of thesubject-matter of separate applications.

I am aware that it has been proposed to construct gas-burners of twosections, one section being notched and the other formed to overlap thenotched section; but in such cases the notches were either square orsemicircular, and sufficiently separated to form separate andindependent square orsemieircular jets of gas.

In my improved burner the saw tooth notches, in connection with theoverlapping section, operate to produce practically a continuous jet orflame of corrugated form, and as the air is allowed to enter thecorrugations in the flame it is brought in direct and intimate contactwith the flame, and hence is freely and thoroughly commingled therewith.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

4 1. A burner consisting of two sections, the wall of one section beingprovided with a seing notched, and the corresponding wall of the uppersection formed to overlap said notches and form gas-jets, substantiallyas set forth.

3. A burnerconsisting of two screw-threaded sections, the inner wall ofone section being provided with a circuit of saw-tooth notches, and thecorresponding wall of the upper section formed to rest upon and projectover the edges of the notches and form gasjets, substantially as setforth.

4. A burner consisting of a lower section with notched wall, and havinggas-supply branches cast integral therewith, in combina tion with anupper section constructed to overlap the notches in the lower sections,substantially as set forth.

In testimony whereof I have signed this specification in thepresenceoftwo subscribing witnesses.

XVALTER MARSH JACKSON.

XVitnesses:

S. F. PECKHAM, CHAS. I-l. JACKSON.

